Icon of program: Safari Technology Preview

Safari Technology Preview for Mac

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Safari Technology Preview Analysis

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Not written by CNET Staff.

Safari Technology Preview is a specialized web browser designed for developers and users interested in testing the latest web technologies. This free application offers a glimpse into upcoming features and improvements before they are rolled out in the standard Safari browser. Users can experiment with new APIs, CSS, and JavaScript enhancements, making it a valuable tool for web development and design.

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Equipped with a user-friendly interface, Safari Technology Preview maintains the core functionalities of Safari while providing additional tools for debugging and performance analysis. Features such as the Web Inspector, responsive design mode, and support for experimental web technologies allow developers to optimize their websites efficiently. As a result, it serves as an essential platform for those looking to stay ahead in the rapidly evolving web landscape.

Icon of program: Safari Technology Preview

Safari Technology Preview for Mac

Download now

Used Safari Technology Preview for Mac?

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Full Specifications

GENERAL
Release
Latest update
Version
release-1
OPERATING SYSTEMS
Platform
Mac
Operating System
  • Mac OS X
  • OS X 10.11
Additional Requirements
Compatible with OS X 10.11.4 or later
POPULARITY
Total Downloads
556
Downloads Last Week
1
Report Software

Program available in other languages

Last Updated

Developer’s Description

By Apple
Get a sneak peek at upcoming web technologies in OS X and iOS.

Get a sneak peek at upcoming web technologies in OS X and iOS and experiment with these technologies in your websites and extensions.

This release of Safari Technology Preview contains the most recent additions and improvements to WebKit and the latest advances in Safari web technologies.

Browser Differences

  • Safari Technology Preview can be run side-by-side with Safari and set as the default browser
  • Separate local data stores are used for history, bookmarks, cookies, and cache
  • Browsing history and bookmarks are synced over iCloud when iCloud sync is enabled
  • The Develop menu is enabled by default
  • Receives regular updates through the Updates tab of the Mac App Store
  • Bug reports made on bugreport.apple.com should specify Safari Technology Preview

    • JavaScript Improvements

  • ECMAScript 6 support including lexical scoping, iterators, generators, arrow functions, default parameter values and many new built-in APIs
  • Better standards compliant IndexedDB support with more stability
  • Included the B3 JavaScript JIT compiler with low-latency, high-throughput that boosts performance
  • Added the ability to use `document.execCommand('copy')` and `document.execCommand('cut')` in response to a user gesture to copy and cut text programmatically

    • HTML Enhancements

  • The latest implementation of the Shadow DOM specification
  • Added support for Content Security Policy Level 2

    • Web Inspector Changes

  • Added memory summary and JavaScript allocations timelines
  • Added a fast JavaScript sampling profiler
  • Improved JavaScript profiling timeline view

    • Behavior Changes

  • Included many web compatibility fixes and bug fixes

    • Download.com
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    AI Assisted Content Disclosure

    Content created and reviewed by Softonic with information obtained from Apple, using AI.

    CNET's editorial team was not involved in the creation of this content. Opinions, analysis and reviews were not provided by CNET.